124691355677 has 4 divisors (see below), whose sum is σ = 142504406496. Its totient is φ = 106878304860.

The previous prime is 124691355671. The next prime is 124691355683. The reversal of 124691355677 is 776553196421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (124691355671) and next prime (124691355683).

It is a cyclic number.

It is not a de Polignac number, because 124691355677 - 2⁴ = 124691355661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124691355671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8906525399 + ... + 8906525412.

It is an arithmetic number, because the mean of its divisors is an integer number (35626101624).

Almost surely, 2^124691355677 is an apocalyptic number.

It is an amenable number.

124691355677 is a deficient number, since it is larger than the sum of its proper divisors (17813050819).

124691355677 is an equidigital number, since it uses as much as digits as its factorization.

124691355677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17813050818.

The product of its digits is 9525600, while the sum is 56.

The spelling of 124691355677 in words is "one hundred twenty-four billion, six hundred ninety-one million, three hundred fifty-five thousand, six hundred seventy-seven".